MY210409A - Steam turbine seal clearance adjusting method - Google Patents

Steam turbine seal clearance adjusting method

Info

Publication number
MY210409A
MY210409A MYPI2021006972A MYPI2021006972A MY210409A MY 210409 A MY210409 A MY 210409A MY PI2021006972 A MYPI2021006972 A MY PI2021006972A MY PI2021006972 A MYPI2021006972 A MY PI2021006972A MY 210409 A MY210409 A MY 210409A
Authority
MY
Malaysia
Prior art keywords
seal ring
steam turbine
length
adjusting method
rotary shaft
Prior art date
Application number
MYPI2021006972A
Inventor
Mizumi Shunsuke
KO Ketsu
Kodera Juichi
Kayahara Masayuki
Original Assignee
Mitsubishi Power Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Power Ltd filed Critical Mitsubishi Power Ltd
Publication of MY210409A publication Critical patent/MY210409A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
    • F01D11/20—Actively adjusting tip-clearance
    • F01D11/22—Actively adjusting tip-clearance by mechanically actuating the stator or rotor components, e.g. moving shroud sections relative to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/025—Seal clearance control; Floating assembly; Adaptation means to differential thermal dilatations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/55—Seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

A steam turbine (100) includes a rotary shaft (1) which is configured to rotate about an axis, a blade (30) which is provided on an outer peripheral surface of the rotary shaft (1S) , a casing (2) which covers the rotary shaft (1) and the blade (30) from an outer peripheral side, a vane (20) which is provided on an inner peripheral surface of the casing (2), and a seal device (2B) which includes a seal ring (43) provided between the outer peripheral surface and the vane (20) and a position adjusting portion configured to adjust a position of the seal ring (43) in a radial direction. A seal clearance adjusting method includes a measurement step (S2) of measuring a length of the seal ring (43) in the radial direction from a predetermined reference position as a reference length, a preparation step (S5) of preparing an unused seal ring (43), and an adjustment step (S6) of adjusting a length of the unused seal ring (43) from the reference position to be the reference length by the position adjusting portion. Figure 6
MYPI2021006972A 2019-05-31 2020-05-28 Steam turbine seal clearance adjusting method MY210409A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019101996A JP7267109B2 (en) 2019-05-31 2019-05-31 Steam turbine seal clearance adjustment method
PCT/JP2020/021199 WO2020241782A1 (en) 2019-05-31 2020-05-28 Steam turbine seal clearance adjusting method, and steam turbine

Publications (1)

Publication Number Publication Date
MY210409A true MY210409A (en) 2025-09-20

Family

ID=73553461

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2021006972A MY210409A (en) 2019-05-31 2020-05-28 Steam turbine seal clearance adjusting method

Country Status (10)

Country Link
US (1) US11828185B2 (en)
JP (1) JP7267109B2 (en)
KR (1) KR102676930B1 (en)
CN (1) CN113874601B (en)
DE (1) DE112020002627T5 (en)
MX (1) MX2021014133A (en)
MY (1) MY210409A (en)
PH (1) PH12021552941A1 (en)
TW (1) TWI799708B (en)
WO (1) WO2020241782A1 (en)

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US11821320B2 (en) * 2021-06-04 2023-11-21 General Electric Company Turbine engine with a rotor seal assembly
US12270304B2 (en) 2021-07-26 2025-04-08 General Electric Company Turbine engine with a floating seal assembly
US12006829B1 (en) 2023-02-16 2024-06-11 General Electric Company Seal member support system for a gas turbine engine
US12486779B2 (en) 2023-03-08 2025-12-02 General Electric Company Seal support assembly for a turbine engine
US12116896B1 (en) 2023-03-24 2024-10-15 General Electric Company Seal support assembly for a turbine engine
US12421861B2 (en) 2023-03-24 2025-09-23 General Electric Company Seal support assembly for a turbine engine
US12416243B2 (en) 2023-03-24 2025-09-16 General Electric Company Seal support assembly for a turbine engine
US12241375B2 (en) 2023-03-24 2025-03-04 General Electric Company Seal support assembly for a turbine engine
US12372002B2 (en) 2023-03-24 2025-07-29 General Electric Company Seal support assembly for a turbine engine
US12215587B2 (en) 2023-03-24 2025-02-04 General Electric Company Seal support assembly for a turbine engine
US12215588B2 (en) 2023-03-27 2025-02-04 General Electric Company Seal assembly for a gas turbine engine
US12326089B2 (en) 2023-04-24 2025-06-10 General Electric Company Seal assembly for a gas turbine engine

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Also Published As

Publication number Publication date
US11828185B2 (en) 2023-11-28
MX2021014133A (en) 2022-01-04
KR102676930B1 (en) 2024-06-19
CN113874601B (en) 2023-07-07
CN113874601A (en) 2021-12-31
WO2020241782A1 (en) 2020-12-03
US20220235667A1 (en) 2022-07-28
JP7267109B2 (en) 2023-05-01
TW202113220A (en) 2021-04-01
JP2020197135A (en) 2020-12-10
PH12021552941A1 (en) 2022-07-25
KR20210149836A (en) 2021-12-09
TWI799708B (en) 2023-04-21
DE112020002627T5 (en) 2022-02-17

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